Past Events

The Oregon Number Theory Seminar Series will held thrice-yearly (one meeting per year at each of the three Oregon universities (PSU, UOregon and OSU) with the hopes of bringing exceptional researchers to our somewhat-isolated location, and to foster...

All talks will be in DTB A102. Schedule Saturday 9:30am Reception, Tea and Coffee. Room TBA 10:30am Liam Watson 11:40am Geoffroy Horel 12:40pm Lunch 2:00pm Tomasz Kacynski 3:10pm Tea / Coffee. Room TBA 3:40pm Keiichi Sakai Saturday night we will have...

When a sequence of numbers is slowly converging and when it is impossible to have access to the process producing it, it can be transformed, by a sequence transformation, into a new sequence which, under some assumptions, converges faster to the same...

When a sequence of numbers is slowly converging and when it is impossible to have access to the process producing it, it can be transformed, by a sequence transformation, into a new sequence which, under some assumptions, converges faster to the same...

We will introduce the Dynamical Mordell-Lang problem by Ghioca and Tucker. After that, we explain the “orbit intersection problem” for linear spaces and semi-abelian varieties. This is joint work with Ghioca. A video of this event is available on...

The local zeta function of a variety $X$ over a finite field $F_q$ is defined to be $$Z(X,t) = \exp\sum_{n > 0}\frac{|X(F_{q^n})|}{n}.$$ This invariant depends only on the point counts of $X$ over extensions of $F_q$. We discuss how $Z(X,t)$ can be...

We consider an i.i.d. balanced environment omega(x,e)=omega(x,-e), genuinely d dimensional on the lattice and show that there exist a positive constant C and a random radius R(omega) with streched exponential tail such that every non negative omega...

For a differential equation model of some data, the controlled relaxation from data values to the state values of the best fitting numerical solution provides a means for precise parameter estimation. In this talk, I will discuss the theory, benefits...

We study chemotaxis equations coupled to the Navier-Stokes equations, which is a mathematical model describing the dynamics of oxygen, swimming bacteria (Bacillus subtilis) living in viscous incompressible fluids. It is, in general, not known if...

Talk details are available on the SFU DM site here